A communication network includes a plurality of nodes, selectively including a
client, a remote gateway Internet service provider, the Internet, a local enterprise
gateway, and an enterprise internal network. A local coincident endpoint is established
at the local gateway for an outer connection with a remote node and an inner connection
with the same or a different remote node. Nested traffic received at the gateway
on the outer connection is decapsulated and then source-in NATed. Traffic received
at the gateway for transmission on the outer connection is first source-in NATed,
and then encapsulated for communication on the outer connection.